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Medical or dental instrument with a temperature-measuring device

  • US 9,526,585 B2
  • Filed: 11/14/2013
  • Issued: 12/27/2016
  • Est. Priority Date: 05/19/2011
  • Status: Active Grant
First Claim
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1. A handpiece, comprisinga handpiece head having an outer shell defining an inner volume,a tool holder device for releasably holding a tool that can be connected to the handpiece, wherein the tool holder device is moveably arranged in the inner volume,at least one bearing unit operatively connected to the tool holder device to moveably support the tool holder device, wherein the at least one bearing unit is arranged in the inner volume,a drive device for setting in motion a tool that can be connected to the tool holder device,a temperature-measuring device for measuring a temperature of at least a part of the handpiece, wherein the temperature-measuring device comprises an electrical temperature sensor which is arranged in a partial space of the inner volume, said partial space being bordered on a first side by the at least one bearing unit and on a second side by the tool holder device, so that the temperature sensor can measure the temperature of at least one of the bearing unit or the tool holder device, andan electric line or signal line connecting the temperature sensor of the temperature-measuring device to a unit comprising at least one of an evaluation unit for evaluating the measured signals of the temperature-measuring device, a regulating or control unit for temperature-dependent regulation or control of the handpiece or a display unit for displaying the measured or determined temperature value or a temperature limit value, wherein the electric line or signal line extends out of the handpiece head to connect to the unit.

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